Seattle Seahawks running back Mike Davis not only showed the Philadelphia Eagles what he was capable of, but a national TV audience. Davis rushed for a game-high 64 yards on 16 carries and four receptions for 37 yards. Ted S. WarrenAP

Seattle Seahawks running back Mike Davis not only showed the Philadelphia Eagles what he was capable of, but a national TV audience. Davis rushed for a game-high 64 yards on 16 carries and four receptions for 37 yards. Ted S. WarrenAP

“I was on the practice squad 10 weeks. I’ve been cut twice,” Davis said. “I always have a chip on my shoulder. I am always angry.”

Then on Seattle’s decisive drive early in the fourth quarter, Davis went out on a pass route, then saw quarterback Russell Wilson darting up the right side.

Something told Davis to keep up.

“With Russ, you never know,” Davis said.

After gained 6 yards, Wilson pitched it to Davis on his right. The running back gained an additional 17 yards before being tackled at the Eagles’ 35.

It was just Davis’ 16th career NFL game — and 12th game in which he received at least one rushing attempt.

His previous career-high was 34 rushing yards in his first game as a 49ers rookie against the St. Louis Rams.

McKISSIC GETS IN ACT

As the team’s change-of-pace back, McKissic tallied Seattle’s biggest touchdown of the night with 7:29 to go.

Lined up on the left side, he faked as if he was going to run an inside route. Philadelphia linebacker Mychal Kendricks bit on it, and McKissic changed directions to the outside. Wilson hit him with a 15-yard pass for his third touchdown of the season.

“Easy work,” McKissic said with a grin. “Russ gave me the signal, and we got it done. It was great to finally do it on the big stage.”

A NEW FULLBACK?

Rookie offensive lineman Jordan Roos was active for just his third game, and already he has a new role.

Roos lined up for his first career offensive snap at fullback.

After Tre Madden (calf) was placed on injured reserve on Nov. 7, the team has not had a fullback. But Roos was put there this week — and entered the game early in the second half for Davis’ carry from the Eagles’ 1 that was stopped.

“Obviously we don’t have a fullback right now,” said Roos, who admitted he has never played fullback in his life. “I went back there, and I knew I was going to be in a collision.”

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EXTRA POINTS

As has been the case for many games this season, defensive lineman Michael Bennett and seven of his teammates sat during the national anthem. Offensive tackle Duane Brown kneeled next to them. ... Actor Chris Pratt raised the 12th Man Flag before the game Sunday night, and also appeared as an on-site studio guest with NBC Sports.